Pentax K-1 II has a 36.0MP Full frame (35.9 x 24 mm ) sized CMOS sensor and features PRIME IV processor. You can shoot at maximum resolution of 7360 x 4912 pixels with aspect ratios of and 3:2. K-1 Mark II has a native ISO range of 100 - 819200 and it can save files in RAW format which gives you a wider room for post processing.
Pentax K-1 II is not the highest resolution Full frame camera. Blackmagic PYXIS 12K with its 98.8MP sensor is leading in this class. Check the comparison of Pentax K-1 II vs Blackmagic PYXIS 12K or take a look at Highest resolution DSLR cameras list.
High Resolution Mode
Pentax K-1 II has a special High Resolution mode where the camera takes multiple images of a scene while moving its sensor using the sensor shift image stabilization system and combine them automatically to create a much higher resolution image. This feature works best with static scenes and using a tripod is a must to minimize stitching artifacts.
Anti-Aliasing Filter
Another important feature about Pentax K-1 II's sensor is the lack of anti-alias (Low-pass) filter. Removing anti-aliasing filter increases the sharpness and level of detail but on the other side it also increases the chance of moiré occurring in certain scenes. But wait! K-1 Mark II takes care of this problem for you. It has a unique and adjustable Anti-Aliasing Filter Simulator mode which can create the effects of a Low Pass filter electronically when you want to avoid moiré.
Let's look at how the size of the Pentax K-1 II's Full frame sensor compares with other standard sensor sizes.
Comparison image of Pentax K-1 II Sensor Size with other standard sensors
Sensor size is what determines the circle of confusion, and therefore how much
depth of field Pentax K-1 II gives you at any given aperture.
You can
calculate
the exact depth of field for the Pentax K-1 II
at any focal length, aperture and subject distance, including the hyperfocal distance
for landscapes and the very shallow focus zone you get with long telephoto lenses.
